MessageToEagle.com - Some natural disasters are predictable but many others can occur with
little or no warning at all.

As frequent extreme weather events such as droughts, floods, severe storms,
and heat waves can strike quickly, scientists have focused the attention of climate scientists on the connections
between greenhouse warming and extreme weather.

A new study was conducted to explore the forces driving extreme weather events and their impacts over the next decade,
specifically because of the potential threat to U.S. national security.

Aftermath from a deadly tornado in Joplin, Mo.

The report finds that the early ramifications of climate extremes resulting
from climate change are already upon us and will continue to be felt over the next decade, directly impacting U.S.
national security interests.

"Lessons from the past are no longer of great value as a guide to the future," said co-lead author Michael McElroy,
Gilbert Butler Professor of Environmental Studies at Harvard University. "Unexpected changes in regional weather
are likely to define the new climate normal, and we are not prepared."

Changes in extremes include more record high temperatures; fewer but stronger tropical cyclones; wider areas of
drought and increases in precipitation; increased climate variability; Arctic warming and attendant impacts; and
continued sea level rise as greenhouse warming continues and even accelerates.

These changes will affect water and food availability, energy decisions, the design of critical infrastructure,
use of the global commons such as the oceans and the Arctic region, and critical ecosystem resources.

They will affect both underdeveloped and industrialized countries with large costs in terms of economic and
human security.

The study identifies specific regional climate impacts -- droughts and desertification in Mexico, Southwest Asia,
and the Eastern Mediterranean, and increased flooding in South Asia -- that are of particular strategic importance
to the United States.

The report concludes that the risks related to extreme weather require that the U.S. sustain and augment its
scientific and technical capacity to observe key indicators, monitor unfolding events, and forewarn of impending
security threats as nations adapt to a changing climate.

Hurricane Katrina. Predicted changes in extremes include more record high temperatures; fewer but stronger
tropical cyclones; wider areas of drought and increases in precipitation; increased climate variability;
Arctic warming and attendant impacts; and continued sea level rise as greenhouse warming continues and
even accelerates. Credit: NOAA

The study recommends a national strategy for strategic
observations and monitoring -- including greenhouse gas and aerosol emissions, ocean temperatures, and satellite
observations of the Arctic -- and improved forecast models.

"Our critical observational infrastructure is at risk from declining funding," added co-lead author D. James Baker,
Director of the Global Carbon Measurement Program at the William J. Clinton Foundation and former Administrator of
the National Oceanic and Atmospheric Administration (NOAA). "Without that knowledge, the needs of civil society and
national security for mitigation and adaptation will go unmet."

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